The Fitch Staffer Has Emerged as One of the Most Sought-after Experts on Chinese Finance

When top officials at the U.S. Federal Reserve want to understand the Chinese financial system, they meet Charlene Chu. Goldman Sachs, which isn't short of China experts, interviewed her and sent the transcript to its clients. And one of the world's most influential investment firms calls her a rock star.

From her cubicle in a Beijing office tower, Ms. Chu, who works for bond-rating firm Fitch Ratings, has emerged as one of the most...